Updated the Sample app and Widget targets in the Xcode project to make the app works for visionOS.

Attendi.xcodeproj/project.pbxproj

@@ -11,7 +11,7 @@
 		02870A292FF7FF530079EA3A /* Features in Frameworks */ = {isa = PBXBuildFile; productRef = 02870A282FF7FF530079EA3A /* Features */; };
 		0296F7F02FFAB1B600D2C5FC /* WidgetKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0296F7EF2FFAB1B600D2C5FC /* WidgetKit.framework */; };
 		0296F7F22FFAB1B600D2C5FC /* SwiftUI.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0296F7F12FFAB1B600D2C5FC /* SwiftUI.framework */; };
-		0296F7FF2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 0296F7EE2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex */; platformFilters = (ios, xros, ); settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
+		0296F7FF2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 0296F7EE2FFAB1B600D2C5FC /* AttendiWidgetExtension.appex */; platformFilter = ios; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		02D46AFE2FFAE77500266643 /* Features in Frameworks */ = {isa = PBXBuildFile; productRef = 02D46AFD2FFAE77500266643 /* Features */; };
 /* End PBXBuildFile section */
 
@@ -342,10 +342,7 @@
 		};
 		0296F7FE2FFAB1B600D2C5FC /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
-			platformFilters = (
+			platformFilter = ios;
-				ios,
-				xros,
-			);
 			target = 0296F7ED2FFAB1B600D2C5FC /* AttendiWidgetExtension */;
 			targetProxy = 0296F7FD2FFAB1B600D2C5FC /* PBXContainerItemProxy */;
 		};
@@ -833,7 +830,7 @@
 				SDKROOT = auto;
 				SKIP_INSTALL = YES;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
-				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator watchos watchsimulator xros xrsimulator";
+				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "DEBUG $(inherited)";
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
@@ -841,7 +838,7 @@
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
 				SWIFT_VERSION = 6.0;
-				TARGETED_DEVICE_FAMILY = "1,2,4,7";
+				TARGETED_DEVICE_FAMILY = "1,2";
 				WATCHOS_DEPLOYMENT_TARGET = 26.0;
 				XROS_DEPLOYMENT_TARGET = 26.0;
 			};
@@ -925,14 +922,14 @@
 				SDKROOT = auto;
 				SKIP_INSTALL = YES;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
-				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator watchos watchsimulator xros xrsimulator";
+				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
 				SWIFT_VERSION = 6.0;
-				TARGETED_DEVICE_FAMILY = "1,2,4,7";
+				TARGETED_DEVICE_FAMILY = "1,2";
 				WATCHOS_DEPLOYMENT_TARGET = 26.0;
 				XROS_DEPLOYMENT_TARGET = 26.0;
 			};

Packages/Features/Sources/Notifying/Styles/Labels/NotificationLabelStyle.swift

@@ -45,10 +45,14 @@ public struct NotificationLabelStyle: LabelStyle {
         }
         .padding(.vertical, Constant.Padding.vertical)
         .padding(.horizontal, Constant.Padding.horizontal)
+        #if os(visionOS)
+        .glassBackgroundEffect(in: .capsule)
+        #else
         .glassEffect(
             .regular,
             in: .capsule
         )
+        #endif
     }
 
 }

Packages/Features/Sources/Recording/Styles/Buttons/RecordingButtonStyle.swift

@@ -3,7 +3,8 @@ import SwiftUI
 /// The button style for the controls of a ``RecordingView``.
 ///
 /// The style renders the button's label in the primary foreground color over a padded, circular Liquid Glass background — tinted by
-/// the color given at initialization — that reacts fluidly to presses. The whole button dims while disabled, and both the label and its
+/// the color given at initialization — that reacts fluidly to presses. On visionOS, where Liquid Glass is unavailable, the background is
+/// the platform's own glass material overlaid with the tint color. The whole button dims while disabled, and both the label and its
 /// padding scale relative to the current dynamic type size.
 struct RecordingButtonStyle: ButtonStyle {
 
@@ -52,6 +53,14 @@ struct RecordingButtonStyle: ButtonStyle {
             .padding(padding)
             .scaledToFit()
             .foregroundStyle(.primary.opacity(opacity))
+            #if os(visionOS)
+            .background(
+                tintColor.opacity(Constant.Opacity.tint),
+                in: .circle
+            )
+            .glassBackgroundEffect(in: .circle)
+            .opacity(opacity)
+            #else
             .glassEffect(
                 .regular
                     .tint(tintColor)
@@ -59,6 +68,7 @@ struct RecordingButtonStyle: ButtonStyle {
                 in: .circle
             )
             .opacity(opacity)
+            #endif
     }
 
 }
@@ -108,6 +118,8 @@ private enum Constant {
         static let disabled: Double = 0.5
         /// The opacity of an enabled button.
         static let enabled: Double = 1
+        /// The opacity of the tint color laid over the glass background on visionOS.
+        static let tint: Double = 0.5
     }
 
     /// The padding constants.

Packages/Features/Sources/Recording/Views/RecordingView.swift

@@ -81,7 +81,66 @@ public struct RecordingView: View {
                     .accessibilityValue(model.textTimerAccessible)
             }
 
+            #if os(visionOS)
+            controls
+            #else
             GlassEffectContainer {
+                controls
+            }
+            #endif
+        }
+        .animation(
+            .easeInOut,
+            value: model.state
+        )
+        .onChange(
+            of: model.transcription,
+            initial: false
+        ) { _, newValue in
+            if let newValue {
+                onTranscription(newValue)
+            }
+        }
+        .alert(
+            .viewRecordingAlertErrorTitle,
+            isPresented: .init {
+                model.error != nil
+            } set: { isPresented in
+                if !isPresented {
+                    model.dismissedError()
+                }
+            },
+            presenting: model.error
+        ) { error in
+            if error == .permissionDenied, let url = URL.settings {
+                Button(.viewRecordingAlertErrorButtonSettings) {
+                    openURL(url)
+                }
+            }
+
+            Button(
+                .viewRecordingAlertErrorButtonOk,
+                role: .cancel
+            ) {
+                // Dismissal is handled by the presentation binding.
+            }
+        } message: { _ in
+            if let message = model.textAlertMessage {
+                Text(message)
+            }
+        }
+    }
+
+}
+
+// MARK: - Subviews
+
+private extension RecordingView {
+
+    // MARK: Computed
+
+    /// The main, discard, and send buttons controlling the recording flow, laid out in a horizontal stack.
+    var controls: some View {
         HStack(
             spacing: Constant.Spacing.stack
         ) {
@@ -129,48 +188,6 @@ public struct RecordingView: View {
             }
         }
     }
-        }
-        .animation(
-            .easeInOut,
-            value: model.state
-        )
-        .onChange(
-            of: model.transcription,
-            initial: false
-        ) { _, newValue in
-            if let newValue {
-                onTranscription(newValue)
-            }
-        }
-        .alert(
-            .viewRecordingAlertErrorTitle,
-            isPresented: .init {
-                model.error != nil
-            } set: { isPresented in
-                if !isPresented {
-                    model.dismissedError()
-                }
-            },
-            presenting: model.error
-        ) { error in
-            if error == .permissionDenied, let url = URL.settings {
-                Button(.viewRecordingAlertErrorButtonSettings) {
-                    openURL(url)
-                }
-            }
-
-            Button(
-                .viewRecordingAlertErrorButtonOk,
-                role: .cancel
-            ) {
-                // Dismissal is handled by the presentation binding.
-            }
-        } message: { _ in
-            if let message = model.textAlertMessage {
-                Text(message)
-            }
-        }
-    }
 
 }